Clinical trial

A clinical trial is a research study in human volunteers to answer specific health questions.

Source: U.S. Food and Drug Administration, Basic Q&A on Clinical Trials 

There are different kinds of clinical trials, including those to study:

• prevention options
• new treatments or new ways to use existing treatments
• new screening and diagnostic techniques
• options for improving the quality of life for people who have serious medical conditions

Clinical trials are conducted according to a plan called a protocol. The protocol describes what types of patients may enter the study, schedules of tests and procedures, drugs, dosages, and length of study, as well as the outcomes that will be measured. Each person participating in the study must agree to the rules set out by the protocol.

Source: U.S. Food and Drug Administration, Basic Q&A on Clinical Trials 

Deutsch: Klinischer Versuch
Español: Ensayo clínico
Français: Essai clinique

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